A couple of comments.
To “nishtdaingesheft” : If you accept that artificial insemination is like an actual relation, then there is no difference between that matter and the so-called get me’useh. The child of such insemination is a mamzer, as the woman receiving the treatment is married. I don’t remember whether the satmarer Rov zz’l said that the child is a mamzer but I do remember that every chassidische rov in the US argued with R’Moshe zz’l, yet, R’moshe’s opinion became accepted.
to zahavsdad: ‘in chareidi circles there are no agunas” You are kidding, right?
To all, the gemoro has various instances where you beat the husband ‘at shejomar rotzeh ani” (I want to do it !) and the get is a good get. There were many Poskim in the US who accepted the pre-nup and, as far as I know, the Israeli Poskim were “choizer’ – changed their opinion – that it was a get me’uesh when they heard the details. Today, i don’t beleive that tehre is a serious Possek who disagrees swith the pre-nup.